Is there a cleaner way of updating SplineMeshesComponents ?

Development Programming & Scripting Blueprint
1

Hi all,

My project is a road editor so I erase and redraw SplineMeshComponents VERY often.

Is there a cleaner way to update a SplineMeshComponent than calling
DestroyComponent() > AddSplineMeshsComponent() > SetStaticMesh() > SetMaterial() >
SetStartAndEnd() ?
Do i absolutely have to destroy the component every time ?

2

Hi guitou80,

If you use SplineMeshComponents from your spline actor, they get destroyed on construction - when the spline moves or has points added/removed the construction is called and the whole object is remade.

You could make a system to add actors instead that have a SplineMeshComponent in them, then just update those transforms and start/end data but that’s pretty heavy handed…

If you’ve got collision disabled, it should be very fast anyway…

3

Hi RecourseDesign,

Thanks for your answer.
What do you mean by spline actor? An actor who owns a spline component ?

4

Yes that’s right, you can spawn an actor, attach it (or not) and add a SplineMeshComponent to that actor - it’s not the most efficient as you have so many actors, but it’s possible to do, you could make a system with an ActorPool of those SplineMeshComponent Actors and use them while creating your spline, then ‘bake’ it with it’s own spline mesh components when you’re finished maybe?